1189093230865 has 8 divisors (see below), whose sum is σ = 1428447848040. Its totient is φ = 950250604032.

The previous prime is 1189093230851. The next prime is 1189093230869. The reversal of 1189093230865 is 5680323909811.

It can be written as a sum of positive squares in 4 ways, for example, as 141174535824 + 1047918695041 = 375732^2 + 1023679^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1189093230865 - 2¹³ = 1189093222673 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1189093230869) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127992474 + ... + 128001763.

It is an arithmetic number, because the mean of its divisors is an integer number (178555981005).

Almost surely, 2^{1189093230865} is an apocalyptic number.

It is an amenable number.

1189093230865 is a deficient number, since it is larger than the sum of its proper divisors (239354617175).

1189093230865 is an equidigital number, since it uses as much as digits as its factorization.

1189093230865 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255995171.

The product of its (nonzero) digits is 2799360, while the sum is 55.

The spelling of 1189093230865 in words is "one trillion, one hundred eighty-nine billion, ninety-three million, two hundred thirty thousand, eight hundred sixty-five".